:root {
    --primary-color: #0a192f;
    --secondary-color: #64ffda;
    --text-color: #8892b0;
    --light-text: #ccd6f6;
    --bg-color: #0a192f;
    --card-bg: #112240;
    --header-height: 70px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', 'Roboto', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.7;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header & Navigation */
header {
    background-color: rgba(10, 25, 47, 0.85);
    backdrop-filter: blur(10px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    height: var(--header-height);
    border-bottom: 1px solid rgba(100, 255, 218, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 100%;
}

.logo {
    font-weight: bold;
    font-size: 1.5rem;
    color: var(--light-text);
}

.logo span {
    color: var(--secondary-color);
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--light-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:hover {
    color: var(--secondary-color);
}

.nav-links a::before {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--secondary-color);
    transition: width 0.3s;
}

.nav-links a:hover::before {
    width: 100%;
}

.hamburger {
    display: none;
    cursor: pointer;
    font-size: 1.5rem;
    color: var(--light-text);
}

/* Language Switcher */
.language-switcher {
    margin-left: 2rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.language-switcher a {
    color: var(--light-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.3s;
    padding: 5px 8px;
    border-radius: 4px;
}

.language-switcher a:hover {
    color: var(--secondary-color);
}

.language-switcher a.active {
    background-color: rgba(100, 255, 218, 0.1);
    color: var(--secondary-color);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--header-height);
}

.hero-content {
    max-width: 800px;
}

.hero small {
    color: var(--secondary-color);
    font-size: 1rem;
    display: block;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 4rem;
    color: var(--light-text);
    margin-bottom: 20px;
    line-height: 1.1;
}

.hero h2 {
    font-size: 2.5rem;
    color: var(--text-color);
    margin-bottom: 25px;
    font-weight: 600;
}

.hero p {
    font-size: 1.1rem;
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-btns {
    display: flex;
    gap: 20px;
}

.btn {
    padding: 12px 25px;
    border: 1px solid var(--secondary-color);
    border-radius: 4px;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-primary {
    background-color: transparent;
    color: var(--secondary-color);
}

.btn-primary:hover {
    background-color: rgba(100, 255, 218, 0.1);
}

/* About Section */
section {
    padding: 100px 0;
}

.section-title {
    font-size: 2rem;
    color: var(--light-text);
    margin-bottom: 50px;
    display: flex;
    align-items: center;
    position: relative;
}

.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background-color: rgba(100, 255, 218, 0.3);
    margin-left: 20px;
}

.about-content {
    display: grid;
    grid-template-columns: 3fr 2fr;
    gap: 50px;
    align-items: center;
}

.about-text p {
    margin-bottom: 20px;
}

.skills-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-top: 20px;
}

.skill-item {
    position: relative;
    padding-left: 20px;
    font-size: 0.9rem;
}

.skill-item::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

.about-image {
    position: relative;
    max-width: 300px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    border: 2px solid var(--secondary-color);
    border-radius: 4px;
}

/*.about-image::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    border: 2px solid var(--secondary-color);
    top: 15px;
    left: 15px;
    z-index: -1;
    border-radius: 4px;
}*/

.about-image img {
    width: 100%;
    border-radius: 4px;
    filter: grayscale(100%);
    transition: filter 0.3s;
    border: 2px solid var(--card-bg);
}

.about-image:hover img {
    filter: grayscale(0);
}

/* Experience Section */
.experience-tabs {
    display: flex;
    margin-bottom: 30px;
    border-bottom: 1px solid rgba(100, 255, 218, 0.2);
    flex-wrap: wrap;
}

.tab-btn {
    padding: 15px 25px;
    background: transparent;
    border: none;
    color: var(--light-text);
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
    font-size: 0.9rem;
}

.tab-btn.active {
    color: var(--secondary-color);
    border-bottom: 2px solid var(--secondary-color);
    background-color: rgba(100, 255, 218, 0.05);
}

.tab-btn:hover:not(.active) {
    color: var(--secondary-color);
    background-color: rgba(100, 255, 218, 0.05);
}

.tab-content {
    display: none;
    animation: fadeIn 0.5s;
}

.tab-content.active {
    display: block;
}

.job-title {
    font-size: 1.2rem;
    color: var(--light-text);
    margin-bottom: 5px;
}

.job-company {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 10px;
}

.job-duration {
    font-size: 0.9rem;
    font-style: italic;
    margin-bottom: 20px;
    display: block;
}

.job-description ul {
    list-style: none;
}

.job-description li {
    position: relative;
    padding-left: 25px;
    margin-bottom: 10px;
}

.job-description li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--secondary-color);
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.project-card {
    background-color: var(--card-bg);
    border-radius: 4px;
    padding: 25px;
    position: relative;
    transition: transform 0.3s, box-shadow 0.3s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.project-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.folder-icon {
    color: var(--secondary-color);
    font-size: 2rem;
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-links a {
    color: var(--light-text);
    font-size: 1.2rem;
    transition: color 0.3s;
}

.project-links a:hover {
    color: var(--secondary-color);
}

.project-title {
    color: var(--light-text);
    font-size: 1.2rem;
    margin-bottom: 10px;
}

.project-description {
    font-size: 0.9rem;
    margin-bottom: 20px;
    flex-grow: 1;
}

.project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 0.8rem;
    color: var(--text-color);
}

/* Side Projects */
.side-project-card {
    display: flex;
    background-color: var(--card-bg);
    border-radius: 4px;
    margin-bottom: 30px;
    transition: transform 0.3s, box-shadow 0.3s;
    overflow: hidden;
}

.side-project-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px -15px rgba(2, 12, 27, 0.7);
}

.side-project-image {
    flex: 1;
    min-width: 300px;
    max-width: 500px;
    overflow: hidden;
    position: relative;
}

.side-project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.side-project-card:hover .side-project-image img {
    transform: scale(1.05);
}

.side-project-content {
    flex: 2;
    padding: 30px;
    display: flex;
    flex-direction: column;
}

.side-project-title {
    font-size: 1.5rem;
    color: var(--light-text);
    margin-bottom: 10px;
}

.side-project-description {
    margin-bottom: 20px;
    flex-grow: 1;
}

.side-project-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-bottom: 20px;
}

.side-project-tech span {
    background-color: rgba(100, 255, 218, 0.1);
    color: var(--secondary-color);
    padding: 5px 10px;
    border-radius: 4px;
    font-size: 0.8rem;
}

.side-project-links {
    display: flex;
    gap: 20px;
}

.side-project-links a {
    color: var(--light-text);
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 0.9rem;
}

.side-project-links a i {
    font-size: 1.2rem;
}

.side-project-links a:hover {
    color: var(--secondary-color);
}

/* Education & Certifications */
.education-grid, .certification-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
}

.education-item, .certification-item {
    background-color: var(--card-bg);
    border-radius: 4px;
    padding: 20px;
    position: relative;
    transition: transform 0.3s;
}

.education-item:hover, .certification-item:hover {
    transform: translateY(-5px);
}

.education-title, .certification-title {
    color: var(--light-text);
    font-size: 1.1rem;
    margin-bottom: 5px;
}

.education-place, .certification-org {
    color: var(--secondary-color);
    font-weight: 500;
    margin-bottom: 10px;
}

.education-duration, .certification-date {
    font-size: 0.9rem;
    font-style: italic;
}

/* Contact Section */
.contact-content {
    max-width: 600px;
    margin: 0 auto;
    text-align: center;
}

.contact-title {
    color: var(--secondary-color);
    font-size: 1rem;
    margin-bottom: 20px;
}

.contact-heading {
    font-size: 2.5rem;
    color: var(--light-text);
    margin-bottom: 20px;
}

.contact-text {
    margin-bottom: 40px;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 30px;
}

.social-links a {
    color: var(--light-text);
    font-size: 1.5rem;
    transition: color 0.3s, transform 0.3s;
}

.social-links a:hover {
    color: var(--secondary-color);
    transform: translateY(-3px);
}

/* Footer */
footer {
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    background-color: var(--primary-color);
    border-top: 1px solid rgba(100, 255, 218, 0.1);
}

footer a {
    color: var(--secondary-color);
    text-decoration: none;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Media Queries */
@media (max-width: 992px) {
    .side-project-card {
        flex-direction: column;
    }
    
    .side-project-image {
        min-width: 100%;
        max-width: 100%;
        height: 250px;
    }
}

@media (max-width: 900px) {
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .about-image {
        margin-top: 50px;
        justify-self: center;
    }
    
    .hero h1 {
        font-size: 3rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: var(--header-height);
        right: -100%;
        flex-direction: column;
        background-color: var(--card-bg);
        width: 70%;
        height: calc(100vh - var(--header-height));
        padding: 50px 30px;
        transition: right 0.3s;
        align-items: center;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .hamburger {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero h2 {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .experience-tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        padding: 10px 15px;
        font-size: 0.8rem;
    }
    
    .language-switcher {
        margin-left: 0;
        position: absolute;
        right: 70px;
        top: 25px;
    }
}

@media (max-width: 480px) {
    .hero-btns {
        flex-direction: column;
        gap: 15px;
    }
    
    .btn {
        width: 100%;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .side-project-tech {
        gap: 10px;
    }
    
    .side-project-tech span {
        font-size: 0.7rem;
    }
    
    .side-project-links {
        flex-direction: column;
        gap: 15px;
    }
}